main()
{ int x=1,y=0,a=0,b=0;
switch(x)
{
case 1:switch(y)
{
case 0:a++;break;
case 1:b++;break;
}
case 2:a++;b++;break;
case 3:a++;b++;break;
}
printf("a=%d,b=%d\n",a,b);
}
A:a=1,b=0
B:a=2,b=1
C:a=1,b=1
D:a=2,b=2
main()
{ int x=1,y=0,a=0,b=0;
switch(x)
{
case 1:switch(y)
{
case 0:a++;break;
case 1:b++;break;
}
case 2:a++;b++;break;
case 3:a++;b++;break;
}
printf("a=%d,b=%d\n",a,b);
}
A:a=1,b=0
B:a=2,b=1
C:a=1,b=1
D:a=2,b=2
A、switch(x+y) { case l0:u=x+y;break; case 11:w=x-y;break; }
B、switch x { default:u=x+y; case 10:w=x-y;break; case 11:u=x*y;break; }
C、switch(x*x+y*y) { case 3: case 3:w=x+y;break; case 0:w=y-x;break; }
D、switch(pow(x,2)+pow(y,2)) (注:pow是调用求幂的数学函数) { case 1: case 3:w=x+y;break; case 0: case x:w=x—y; }
A、10
B、2
C、28
D、27
{int x=15,y=21,z=0;
switch(x%3)
{case 0:z++;break;
case 1:z++;
switch(y%2)
{default:z++;
case 0:z++;break;
}
}
printf ("%d\n",z);
}
A、switch(a*a + b*b) { default: break; case 3: y = a + b; break; case 2: y = a - b; break; }
B、switch(a + b) { case1: case3: y = a + b; break; case0: case4: y = a - b; break; }
C、switch(a + 9) { case a: y = a + b; case b: y = a - b; }
D、switch a * b { case 10: y = a + b; default: y = a - b; }
#include
main
{ int a=0,i;
for(i=1;i<5;i++)
{ switch(i)
{ case 0:
case 3:a+=1;
case 1:
case 2:a=2;
default:a+=3;
}
}
printf("%d",a);
}
A.19
B.18
C.6
D.8
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